Hi!

I am writing with a problem with my AC Compressor that I want to repair myself. Let me start by saying that there is a relevant thread here that I have already referenced, and I could reply to that thread, but it is far too old to expect any responses, so I am posting a new thread. I will start by describing the symptoms, followed by the steps I have taken to try to remedy the situation.

The AC Compressor only engages when the engine is cold. After it warms up (I live in Georgia and it's currently 90 degrees outside, so that doesn't take too long), the compressor cuts out and the AC stops blowing cold air. Additionally, if I get to the interstate before the compressor cuts out, usually the fast driving will keep the compressor cool enough that it will stay engaged until I exit the interstate and stop the car. Sometimes, after the compressor has cut out, if I get back on the interstate and it gets cool enough again, it will re-engage. When it does, you can briefly smell an odd odor from the vents, which smells sort of like towels that were left in the washing machine too long and started to mold.

Here is what I have done to try to remedy the problem: First, I verified that both radiator fans are functioning properly (they are). Secondly, I verified that the compressor relay has not failed (it hasn't). Because both of those checked out just fine, I searched for the thread I mentioned earlier and learned about the field coil in the compressor. Following his steps, I checked the resistance of the field coil. With a cold engine on a roughly 80 degree day, the measurement was roughly 3.8 ohms, which is slightly above spec (but not by much). So from what I have gathered, I need to replace either the field coil, or the compressor clutch. I cannot afford to replace both, so I have to choose. Can anyone on this forum help me know which I should buy?

As always, I am grateful in advance for any wisdom you can bestow upon me.

Cheers!
-Greg

 

err if want to try aftermarket, there's a kit with both the clutch and coil on amazon it seems, i have not use this item so can't vouch for it

https://www.amazon.com/AC-Compressor.../dp/B00L7A8LJO

 

Find the Denso branded one and it's the same as OEM but cheaper

 

Thanks!! That seems like a no brainer.

 

You most likely need a compressor clutch, when the air gap gets too large the magnetic coil wont pull it in. There was a warranty extension on those but it has likely expired.

 

I did check the warranty extension, and I'm past the mileage on that, unfortunately. But only by like 20k miles. I emailed Acura to beg them to honor the extension, but they wouldn't do it. Which is garbage, IMHO. It's not fair that person A gets their problem fixed because it broke slightly sooner than person B, who has to pay for their repair.

 

I had an issue with my ac clutch on Saturday. Started my car and heard a noise. Got my stethoscope out and found the noise was coming form the ac pulley bearing. Took the clutch off and found that the clutch and pulley were grinding on each other. Bearing, clutch, and pulley are shot. Looking for replacements now. The best one I could find so far is the one in the link shown above. Any better recommendations?

Also, anyone have a good recommendation on quality snap ring pliers? My craftsman snap ring pliers are not doing the job.

 

Im in the middle of this right now. I used the "channel lock" brand snap ring pliers from Lowes. I did grind down the heads of the pliers to make them fit a little better.

I ordered my honda genuine parts from Acura Parts - Genuine OEM Acura Parts & Accessories Online. Great prices and fast shipping. I replaced the coil and clutch/pulley.

 

The snap rings were absolutely the worst part of the process.

 

just did this job today in the 100 degree heat. sucks. wasnt terribly difficult if you pull the compressor to the top of the engine, protect your radiator with cardboard if going this route....don't be me. i replaced only the field coil, had to patch my radiator and letting it sit now, i better have ac in the morning.

also, i didn't see that package deal on amazon, little salty about that as well, the field coil is $100 itself :/